The StarGuy CLS CCD 1.25" Filter deepens the contrast between deep
sky objects and the encircling night sky. With a wider transmission curve than
UHC filters, more light can pass through the filter. Stars are brighter. Key
light pollutions wavelengths are reduce for less scatter and improved contrast.
Use this filter for DSLR cameras, CCD and film photography and visual
observation. The StarGuy CLS CCD filter makes viewing of double stars easier in
light polluted areas. These filters feature precision double sided polishing
and coating. 100% Inspected and tested by MrStarGuy.